skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: LOGARITHMIC AMPLIFIER

Abstract

Electronic,amplifier circuits, especially a logai-ithmic amplifier characterizxed by its greatly improved strability are discussed. According to the in ention, means are provided to feed bach the output valtagee to a diode in the amplifier input circuit, the diode being utilized to produce the logarithmic characteristics. The diode is tics, The diode isition therewith and having its filament operated from thc same source s the filament of the logarithmic diode. A bias current of relatively large value compareii with the signal current is continuously passed through the compiting dioie to render the diode insensitivy to variations in the signal current. by this odes kdu to variaelled, so that the stability of the amlifier will be unimpaired.

Inventors:
;
Issue Date:
OSTI Identifier:
4250269
Patent Number(s):
2877348
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
G - PHYSICS G06 - COMPUTING G06G - ANALOGUE COMPUTERS
NSA Number:
NSA-13-015543
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
PHYSICS AND MATHEMATICS; AMPLIFIERS; CIRCUITS; CURRENTS; DIODES; ELECTRIC POTENTIAL; ELECTRON TUBES; SIGNALS; STABILITY; VARIATIONS; WIRES

Citation Formats

Wade, E J, and Stone, R S. LOGARITHMIC AMPLIFIER. United States: N. p., 1959. Web.
Wade, E J, & Stone, R S. LOGARITHMIC AMPLIFIER. United States.
Wade, E J, and Stone, R S. Tue . "LOGARITHMIC AMPLIFIER". United States.
@article{osti_4250269,
title = {LOGARITHMIC AMPLIFIER},
author = {Wade, E J and Stone, R S},
abstractNote = {Electronic,amplifier circuits, especially a logai-ithmic amplifier characterizxed by its greatly improved strability are discussed. According to the in ention, means are provided to feed bach the output valtagee to a diode in the amplifier input circuit, the diode being utilized to produce the logarithmic characteristics. The diode is tics, The diode isition therewith and having its filament operated from thc same source s the filament of the logarithmic diode. A bias current of relatively large value compareii with the signal current is continuously passed through the compiting dioie to render the diode insensitivy to variations in the signal current. by this odes kdu to variaelled, so that the stability of the amlifier will be unimpaired.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {3}
}